Table 1.

Demographic factors. Values given as median with range. p < 0.05

	Without CPM (n = 45)	With CPM (n = 46)	p-value
Age at surgery [years]	74.0 (27; 88)	67.0 (34; 82)	0.032
Female gender	86.7% (n = 39)	71.7% (n = 33)	0.08
Weight [kg]	79.0 (56; 130)	76.0 (60; 120)	0.271
BMI [kg/m²]	28.1 (20.1; 52.1)	27.3 (18.1; 45.7)	0.611
Involved shoulder
Left	25 (55.6%)	22 (47.8%)	0.601
Right	20 (44.4%)	24 (52.2%)
Dominant hand
Left	1 (2.2%)	3 (6.5%)
Right	44 (97.8%)	41 (89.1%)	0.321
No preference	0 (0.0%)	1 (2.2%)
Unknown	0 (0.0%)	1 (2.2%)
Fracture morphology
2part-fracture	6 (13.3%)	9 (19.6%)
3part-fracture	32 (71.1%)	26 (56.5%)	0.867
4part-fracture	7 (15.6%)	11 (23.9%)
With additional head-split	1 (2.2%)	1 (2.2%)
ASA Score
ASA grade 1 or 2	27 (60.0%)	37 (80.0%)
ASA grade 3 or 4	18 (40.0%)	9 (20.0%)	0.097